Bed-spring frame.



P. G. KAPELMAN.

BED SPRING FRAME.

APPLICATION FILED MAY 20, 1914.

Patented Mar. 30, 1915.

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PAENT ()FFIQEa FELIX G. KALPELMAN, OF NEW YORK, N. Y.

BED-SPRING FRAME.

Application filed May 20, 1914.

To all whom it may concern:

Be it known that I, FELIX G. KAPELMAN, a citizen of the United States, residing in New York city, in the county of Bronx and State of New York, have invented certain new and useful Improvements in Bed-Spring Frames, of which the following is a specification.

My present invention relates to an improvement in mattress spring frames for beds and more specifically the provision on such a spring frame of means for increasing or decreasing the width thereof at will, and looking the said means in the set position.

In the drawings, Figure 1 is a perspective view showing my device extended; Fig. 2 is an end elevation thereof showing the device folded to its smallest width; Fig. 3 is an end elevation showing the device folded to its intermediate width; Fig. 1 is an end elevation showing the device extended in full, as in Fig. 1; Fig. 5 is a plan View of the detail of one of these sections; Fig. 6 is a projected side elevation thereof; Fig. 7 is a fragmentary View showing my device adjusted downwardly; Fig. 8 is a partial sectional view of a pivot lock; and Fig. 9 is a fragmentary side view showing the method of fabric clamp jointure.

In Fig. 1 my device is shown as being composed of a pair of cross rails 1, and resiliently attached thereto by helical springs 2, a pair of fabric clamps 3, which fabric clamps are attached to the woven wire fabric 4 in the usual manner. In a general way the construction as noted is similar to the standards customarily used in this class of work.

As a means for maintaining the angle rails l properly spaced apart and for taking up the tension of the woven wire fabric 1, both of said angle members 1 are connected to each other by means of tubular struts 5-5 which are suitably attached at convenient points to the angle cross rails 1, the said struts 5 being upwardly turned at 6-6 in order to provide a proper clearance for resilient action of the spring fabric 4 when in use.

In Fig. 1, the spring frame is shown extended its full width, and in order to enable the user to narrow the entire frame there is provided, on the supporting angle bars 1, a plurality of sections a, Z), 0 and cl. Corresponding means are provided on the fabric clamps 3-3 wherein there is shown openings e, f, g and it between the said fabric clamps. While these last noted openings are Specification of Letters Patent.

Patented Mar. 30, 1915.

Serial No. 839,678.

provided in the fabric clamp members, the wire fabric 1 itself is not cut, it being intended that when the frame portion of my device is folded the flexibility of the wire fabric at the points of jointure will permit of bending without any trouble.

As a means for binding the floating clamp members 2', j, is, Z and m, which form the fabric clamp 3, I have provided holes 7 and 8, Fig. 9, which are drilled through the said fabric clamps and a ring or rings 9 inserted therein so that there is formed, at the foregoing noted joints, means for holding the minor fabric clamp members in resilient operative alinement with one another in order to keep the woven fabric A under proper tension, and at the same time to permit the greatest freedom for folding.

Corresponding minor members A, B, C, D and E, jointed, as before described, are arranged to form the angle cross rails 1, and the construction is better disclosed in detail in Figs. 5 and 6, wherein the member C, which forms the major cross rail is shown as being in alinement with the member D, which forms one of the minor members of the said cross rails 1.

On one of the flanges of the angle member C is riveted a square shouldered stud 10, Fig. 8, the same having a head 11 thereon. Arranged on the minor folding angle rail D is a lug 12 which has a substantially l.- shaped slot arranged thereon, the dimensions of the slot at 13 and 15 being such that it removably fits the rectangular or square lug 12, as indicated in Fig. 6, where it will be noted that the member D is locked in alinement With the main rail member C by virtue of the said fit of the stud 10 in the portion 14: of the L-shaped slot.

To change the position of member D in order to fold the same, or to turn it downwardly, as indicated in Fig. 7, it is moved forwardly, as indicated by the dotted lines 12 such movement of the member D locating the stud in the enlarged angle-portion of the slot 15. The angle member D is then in position to be located, by rotation, in any one of the positions desired, and thereafter moved in such manner as to cause the engagement of either end 13 or 14 of the L- shaped slot with the square face of the stud 10, and thus maintain the same in the desired position. To unlock the two members it is simply necessary to reverse the foregoing noted action.

It is obvious from the foregoing that the width of my device may be varied by using one or any desired number of the minor tice I have found that the loss of resiliency is negligible.

In Fig. 3 two of the minor members a and 6 only are folded and this arrangement has certain additional advantages inasmuch as it leaves a double thickness of fabric at the outer edges of the woven wire fabric, which .edges are usually the portions which are subjected to the greatest wear and strain.

In Fig. 4, as in Fig. 1, the entire device is shown outstretched to its full dimensions and, as before noted, discloses the method of supporting the articulated cross rail 1 as a unit.

In Figs. 2, 3 and 4, the heads of the studs are shown as being cut away in order to facilitate the understanding of theaction of the lock between the said stud and the lugs 12. The minor rail members may be caused to assume other positions relative to the main position of the major rail 1, and one 2. In a spring frame for beds, a mattress fabric, articuated fabric clamps therefor,

articulated cross rails, resilient fabric tensioning means between said cross rails and said clamps, and means carried by said cross rails located in relatively transverse positions and arranged for holding said articulated members in corresponding successive positions.

3. In a spring frame for beds, a foldable mattress fabric, articulated foldable fabric.

clamps therefor, articulatedfoldable angle rails, springs between said cross rails and said clamps and means comprising a slotted lug and a square shouldered stud on said angle rails for adjustably holding said articulations in any desired positions.

4. A bed spring frame, in combination, two series of oppositely arranged articulated cross rails, a mattress fabric stretched therebetween, and means for holding said cross rails in pre-determinedadjusted position. FELIX Gr. KAPELMAN. WVitnesses: r r j H. D. PENNEY, J. F. V. CHRISTOPHER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner cf Patents. a

' Washington, D. G. r 

